Because the coupon is fixed, a bond’s yield goes up when its price drops, and vice versa. Current yield is the amount of annual interest divided by a bond’s current price and yield to maturity factors in the difference between a bond’s current price and its face value at maturity.
Hold on there.
Coupon is normally expressed in terms of an interest rate, says Wikipedia.
Coupon is therefore
fixed relative to the original (nominal) value.
The offer price going higher makes no difference to the yield of someone who already paid the original price.
It just affords them an exit margin.
Anyway - why would a secondary market raise the price for this bond ?
As Ravima suggests, it would only happen if some institutions (temporarily) rotten with money could find no better use for it than to bid on a stock currently yielding 1.3% and offer them a margin to exit.
So the bond market is a high-volume low-margin game at best.
I'm not sure that it is that certain, as de Moivre says.
All hangs on one's assessment of the liquidity state of the principal players in the market both now and in the future.
Bond market experts have this; the rest of us don't.
So as a private investor I think any high-volume & low-margin proposition like this should be seen like a poker raise.
The risk-calculated gains must at least equal the possible losses.